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GPU Usage not at 100%


Syndaz

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Just got an XFX R9 390 today. After an absolutely horrible install period (my mobo was small so it was a pain in the ass to install) I decided to test out Skyrim on Ultra on my 1680x1050 monitor. I got a locked 60-61 FPS but then saw horrible stuttering in towns like Riften (I do have some graphical mods installed but nothing too heavy) so I decided to check out Afterburner. My GPU usage was crazy going up and down so I was wondering whether my PSU could be the problem. It's a cheapo EVGA 600w 80+ which in theory should do the job until I get a new PSU (once I sell my old 650). Any ideas why this is happening? And no my CPU is not a bottleneck it's a I7-2600 and it is fine for gaming atm.

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Could probably be a number of things including bad drivers or the card itself has problems. Not sure how to diagnose that probably but maybe running it through a stress test will reveal something.

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What are your GPU temps? and do you have the latest Crimson drivers (which are supposedly locking fan speeds at 20%)?

Yeah read about those. I have full control over my fan control as I set a custom fan curve. I set my temps to idle at 20% fan speed and then it ramps up to 40-60 depending on how hard it's working. I think I'm one of the lucky ones who haven't had the issues.

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Just noticed that sometimes on idle that it will turn off the auto fan speed and stay at 32% fan speed when its low temps. But this is when I was doing work so this is most likely the driver issue that everyone's heard about. Any help on my original question?

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Just noticed that sometimes on idle that it will turn off the auto fan speed and stay at 32% fan speed when its low temps. But this is when I was doing work so this is most likely the driver issue that everyone's heard about. Any help on my original question?

What's your RAM, VRAM, and CPU usage? 

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What's your RAM, VRAM, and CPU usage? 

Might have fixed the problem. After installing the 390 it changed my power from HP to balenced so I switched it back. I get more consistent high 70%+ only dipping to 30% gpu usage when it's not a very taxxing area.

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I'd temporarily remove any overclocks, run driver wiper to nuke the drivers, then reinstall them, then run valley benchmark or a reputable benchmark. Install Intel Burn Test and run it overnight to test CPU stability.

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